From 1ae905bd7a31bc66d23fc3551d5317aa92d016ae Mon Sep 17 00:00:00 2001
From: vineethvk11 <f20180233@hyderabad.bits-pilani.ac.in>
Date: Thu, 14 Mar 2024 01:45:28 +0530
Subject: [PATCH] Adding ability to undo move and delete actions

---
 src/helpers.js | 172 ++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 169 insertions(+), 3 deletions(-)

diff --git a/src/helpers.js b/src/helpers.js
index 78aadcb8..ac5b015f 100644
--- a/src/helpers.js
+++ b/src/helpers.js
@@ -2305,7 +2305,7 @@ window.new_context_menu_item = function(dirname, append_to_element){
  * @param {string} dest_path - The destination path to move the items to
  * @returns {Promise<void>} 
  */
-window.move_items = async function(el_items, dest_path){
+window.move_items = async function(el_items, dest_path, is_undo = false){
     let move_op_id = operation_id++;
     operation_cancelled[move_op_id] = false;
 
@@ -2339,6 +2339,9 @@ window.move_items = async function(el_items, dest_path){
         progwin = await UIWindowMoveProgress({operation_id: move_op_id});
     }, 2000);
 
+    // storing moved items for undo ability
+    const moved_items = []
+
     // Go through each item and try to move it
     for(let i=0; i<el_items.length; i++){
         // get current item
@@ -2578,7 +2581,7 @@ window.move_items = async function(el_items, dest_path){
                 fsentry.name = metadata?.original_name || fsentry.name;
 
                 // create new item on matching containers
-                UIItem({
+                const options = {
                     appendTo: $(`.item-container[data-path="${html_encode(dest_path)}" i]`),
                     immutable: fsentry.immutable,
                     associated_app_name: fsentry.associated_app?.name,
@@ -2598,7 +2601,9 @@ window.move_items = async function(el_items, dest_path){
                     has_website: $(el_item).attr('data-has_website') === '1',
                     metadata: fsentry.metadata ?? '',
                     suggested_apps: fsentry.suggested_apps,
-                });
+                }
+                UIItem(options);
+                moved_items.push({'options': options, 'original_path': $(el_item).attr('data-path')});
 
                 // this operation may have created some missing directories, 
                 // see if any of the directories in the path of this file is new AND
@@ -2692,6 +2697,19 @@ window.move_items = async function(el_items, dest_path){
     // -----------------------------------------------------------------------
     // DONE! close progress window with delay to allow user to see 100% progress
     // -----------------------------------------------------------------------
+    // Add action to actions_history for undo ability
+    if(!is_undo && dest_path !== trash_path){
+        actions_history.push({
+            operation: 'move',
+            data: moved_items,
+        });
+    }else if(!is_undo && dest_path === trash_path){
+        actions_history.push({
+            operation: 'delete',
+            data: moved_items,
+        });
+    }
+
     if(progwin){
         setTimeout(() => {
             $(progwin).close();   
@@ -3506,6 +3524,12 @@ window.undo_last_action = async()=>{
         } else if(last_action.operation === 'copy') {
             const files = last_action.data;
             undo_copy(files);
+        } else if(last_action.operation === 'move') {
+            const items = last_action.data;
+            undo_move(items);
+        } else if(last_action.operation === 'delete') {
+            const items = last_action.data;
+            undo_delete(items);
         }
     }
 }
@@ -3524,4 +3548,146 @@ window.undo_copy = async(files)=>{
     for (const file of files) {
         await window.delete_item_with_path(file);
     }
+}
+
+window.undo_move = async(items)=>{
+    for (const item of items) {
+        const el = await get_html_from_options(item.options);
+        console.log(item.original_path)
+        move_items([el], path.dirname(item.original_path), true);
+    }
+}
+
+window.undo_delete = async(items)=>{
+    for (const item of items) {
+        const el = await get_html_from_options(item.options);
+        let metadata = $(el).attr('data-metadata') === '' ? {} : JSON.parse($(el).attr('data-metadata'))
+        move_items([el], path.dirname(metadata.original_path), true);
+    }
+}
+
+
+window.get_html_element_from_options = async function(options){
+    const item_id = global_element_id++;
+    
+    options.disabled = options.disabled ?? false;
+    options.visible = options.visible ?? 'visible'; // one of 'visible', 'revealed', 'hidden'
+    options.is_dir = options.is_dir ?? false;
+    options.is_selected = options.is_selected ?? false;
+    options.is_shared = options.is_shared ?? false;
+    options.is_shortcut = options.is_shortcut ?? 0;
+    options.is_trash = options.is_trash ?? false;
+    options.metadata = options.metadata ?? '';
+    options.multiselectable = options.multiselectable ?? true;
+    options.shortcut_to = options.shortcut_to ?? '';
+    options.shortcut_to_path = options.shortcut_to_path ?? '';
+    options.immutable = (options.immutable === false || options.immutable === 0 || options.immutable === undefined ? 0 : 1);
+    options.sort_container_after_append = (options.sort_container_after_append !== undefined ? options.sort_container_after_append : false);
+    const is_shared_with_me = (options.path !== '/'+window.user.username && !options.path.startsWith('/'+window.user.username+'/'));
+
+    let website_url = determine_website_url(options.path);
+
+    // do a quick check to see if the target parent has any file type restrictions
+    const appendto_allowed_file_types = $(options.appendTo).attr('data-allowed_file_types')
+    if(!window.check_fsentry_against_allowed_file_types_string({is_dir: options.is_dir, name:options.name, type:options.type}, appendto_allowed_file_types))
+        options.disabled = true;
+
+    // --------------------------------------------------------
+    // HTML for Item
+    // --------------------------------------------------------
+    let h = '';
+    h += `<div  id="item-${item_id}" 
+                class="item${options.is_selected ? ' item-selected':''} ${options.disabled ? 'item-disabled':''} item-${options.visible}" 
+                data-id="${item_id}" 
+                data-name="${html_encode(options.name)}" 
+                data-metadata="${html_encode(options.metadata)}" 
+                data-uid="${options.uid}" 
+                data-is_dir="${options.is_dir ? 1 : 0}" 
+                data-is_trash="${options.is_trash ? 1 : 0}"
+                data-has_website="${options.has_website ? 1 : 0 }" 
+                data-website_url = "${website_url ? html_encode(website_url) : ''}"
+                data-immutable="${options.immutable}" 
+                data-is_shortcut = "${options.is_shortcut}"
+                data-shortcut_to = "${html_encode(options.shortcut_to)}"
+                data-shortcut_to_path = "${html_encode(options.shortcut_to_path)}"
+                data-sortable = "${options.sortable ?? 'true'}"
+                data-sort_by = "${html_encode(options.sort_by) ?? 'name'}"
+                data-size = "${options.size ?? ''}"
+                data-type = "${html_encode(options.type) ?? ''}"
+                data-modified = "${options.modified ?? ''}"
+                data-associated_app_name = "${html_encode(options.associated_app_name) ?? ''}"
+                data-path="${html_encode(options.path)}">`;
+
+        // spinner
+        h += `<div class="item-spinner">`;
+        h += `</div>`;
+        // modified
+        h += `<div class="item-attr item-attr--modified">`;
+            h += `<span>${options.modified === 0 ? '-' : timeago.format(options.modified*1000)}</span>`;
+        h += `</div>`;
+        // size
+        h += `<div class="item-attr item-attr--size">`;
+            h += `<span>${options.size ? byte_format(options.size) : '-'}</span>`;
+        h += `</div>`;
+        // type
+        h += `<div class="item-attr item-attr--type">`;
+            if(options.is_dir)
+                h += `<span>Folder</span>`;
+            else
+                h += `<span>${options.type ? html_encode(options.type) : '-'}</span>`;
+        h += `</div>`;
+
+
+        // icon
+        h += `<div class="item-icon">`;
+            h += `<img src="${html_encode(options.icon.image)}" class="item-icon-${options.icon.type}" data-item-id="${item_id}">`;
+        h += `</div>`;
+        // badges
+        h += `<div class="item-badges">`;
+            // website badge
+            h += `<img  class="item-badge item-has-website-badge long-hover" 
+                        style="${options.has_website ? 'display:block;' : ''}" 
+                        src="${html_encode(window.icons['world.svg'])}" 
+                        data-item-id="${item_id}"
+                    >`;
+            // link badge
+            h += `<img  class="item-badge item-has-website-url-badge" 
+                        style="${website_url ? 'display:block;' : ''}" 
+                        src="${html_encode(window.icons['link.svg'])}" 
+                        data-item-id="${item_id}"
+                    >`;
+
+            // shared badge
+            h += `<img  class="item-badge item-badge-has-permission" 
+                        style="display: ${ is_shared_with_me ? 'block' : 'none'};
+                            background-color: #ffffff;
+                            padding: 2px;" src="${html_encode(window.icons['shared.svg'])}" 
+                        data-item-id="${item_id}"
+                        title="A user has shared this item with you.">`;
+            // owner-shared badge
+            h += `<img  class="item-badge item-is-shared" 
+                        style="background-color: #ffffff; padding: 2px; ${!is_shared_with_me && options.is_shared ? 'display:block;' : ''}" 
+                        src="${html_encode(window.icons['owner-shared.svg'])}" 
+                        data-item-id="${item_id}"
+                        data-item-uid="${options.uid}"
+                        data-item-path="${html_encode(options.path)}"
+                        title="You have shared this item with at least one other user."
+                    >`;
+            // shortcut badge
+            h += `<img  class="item-badge item-shortcut" 
+                        style="background-color: #ffffff; padding: 2px; ${options.is_shortcut !== 0 ? 'display:block;' : ''}" 
+                        src="${html_encode(window.icons['shortcut.svg'])}" 
+                        data-item-id="${item_id}"
+                        title="Shortcut"
+                    >`;
+
+        h += `</div>`;
+
+        // name
+        h += `<span class="item-name" data-item-id="${item_id}" title="${html_encode(options.name)}">${html_encode(truncate_filename(options.name, TRUNCATE_LENGTH)).replaceAll(' ', '&nbsp;')}</span>`
+        // name editor
+        h += `<textarea class="item-name-editor hide-scrollbar" spellcheck="false" autocomplete="off" autocorrect="off" autocapitalize="off" data-gramm_editor="false">${html_encode(options.name)}</textarea>`
+    h += `</div>`;
+
+    return h;
 }
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